A bit of info about Gulf colours......
After taking over the Ford GT40 race team, Gulf Oil had the GT40 modified with a new roofline and body, and finished in the Gulf Powder Blue (P030-8013) and Marigold (P030-3393) exterior paint combination
Powder Blue PO30-8013
Marigold PO30-3393
"an original Production Car Record Sheet shows the Light Blue code to be (P030-8013) and the Marigold (P030-3393) both being British Leyland (Triumph) colours"
"here it is for the gulf colors(the originals):
Berger Ref 1125 Standard Triumph Powder blue
Berger Ref 1465 Triumph Marigold
Ps: I was told that the dark stripe between the orange and blue should be dark blue."
045 RENAULT ORANGE
051 TRIUMPH POWDER BLUE
I have also been told the following are the same :-
Berger paints No 1125 standard triumph powder blue ICI no. 8013.
No 1456 triumph marigold ICI no 3393.
Powder blue (PPG 12163)
Topaz (orange) (PPG 60812)
Royal Blue for thin stripe between orange stripe and powder blue (PPG 13126)
Do not worry at all the Pale / Powder blue PO30-8013 and Marigold PO30-3393 are not the true Gulf colours but ones of the Wiltshire Oil Company (that Gulf acquired). So all you have to do is to say your car is not in Gulf colours but Wiltshire Oil colours!!!
More here
https://www.gt40s.com/images/howto/LynnMiner/Reference/Paint.pdf
More here
https://www.gt40s.com/threads/mark-i-gulf-livery-specs-and-details.53208/
I do not know if this helps as I only have reference for I think the original paint code.
Someone should know the modern equivalents.
Powder Blue PO30-8013
Marigold PO30-3393
"an original Production Car Record Sheet shows the Light Blue code to be (P030-8013) and the Marigold (P030-3393) both being British Leyland (Triumph) colours"
"here it is for the gulf colors(the originals):
Berger Ref 1125 Standard Triumph Powder blue
Berger Ref 1465 Triumph Marigold
As far as I can find out, the JW Automotive colours were:
Berger Ref: 1125 - Standard Triumph Powder Blue.
Berger Ref: 1456 - Marigold.
Cheers
Mike